COMAR is a group of National Metrology Institutes (NMIs), Designated Institutes (DIs) and national laboratories worldwide that together issue the COMAR database. The effort dates back to the 1970s, when the Laboratoire National de Métrologie et d'Essais (LNE) in France proposed a Code d'Indexation des Matériaux de Référence or COMAR. In the early 1980s, they joined forces with the National Physical Laboratory (NPL) in the United Kingdom and the Bundesanstalt für Materialforschung und -prüfung (BAM) in Germany to issue a database that listed the CRMs available in their countries, an effort that was financially supported by the European Commission. United in the so-called COMAR Consortium, they laid down the rules of their cooperation in a joint Protocol (which has mainly historic value today). The project grew over the years in terms of RMs listed and economies who joined the Consortium.
The previously offline database went online in 2001 and was completely recoded in 2022 – the version on this website. Yes we know, the newly recoded COMAR still contains several bugs and has performance issues -- it's still beta. But we do our best, and hope to tackle our long wish list in the near future. Wish to support us with IT? Welcome. Please let us know.